The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Jun. 02, 2020
Filed:
Mar. 02, 2016
Hitachi, Ltd., Chiyoda-ku, Tokyo, JP;
Yusuke Nakamura, Tokyo, JP;
Takeshi Shimano, Tokyo, JP;
Hitachi, Ltd., Tokyo, JP;
Abstract
To obtain an imaging device capable of achieving high functionality of the imaging device by facilitating detection of an incident angle of light transmitted through a grating substrate. There is provided an imaging device which includes an image sensor that converts an optical image captured by a plurality of pixels arranged in an array on an imaging surface into an image signal and outputs the image signal, a modulator that is provided on a light receiving surface of the image sensor and modulates light intensity, an image storing unit that temporarily stores the image signal output from the image sensor, and a signal processing unit that performs image processing of the image signal output from the image storing unit, and in which the modulator has a first grating pattern composed of a plurality of concentric circles, and the signal processing unit modulates the image signal output from the image storing unit with a virtual second grating pattern composed of a plurality of concentric circles so as to generate a moiré fringe image and changes a size of the concentric circle of the second grating pattern according to a focus position.